Anti social behaviour in public park - Blantyre - Idea letterbox

Idea
I live in Blantyre. There is an open green area with a pathway with not much lightning. There are older kids gathering on the stone cones every night. They smoke weed, vandalise the hall nearby, break bottles and leave litter around. I believe that maybe removing the stone pilers they sit on could possibly help.
Response
An officer visited the resident and advised them what the bollards do and why they are there. Also advised that he would raise the concerns at the next Problem-Solving Group, which the Police sit on, and they may visit the area. It was noted that we would keep the situation under review.